#include<stdio.h>
#include<sys/types.h>
#include<unistd.h>
#include<stdlib.h>
#include<time.h>

int main(){
pid_t ret;
pid_t rec;
int i;
printf("nn P ID :
%d tPP ID : %d n",getpid(),getppid());
sleep(1);
ret=  fork();

srand(time(NULL));

printf("n PID : %d t PP ID : %dn",getpid(),getppid());
printf("getpid()=%d ret=%d rec=0n",getpid(),ret,rec);
printf("n");
sleep(1);
rec=  fork();
printf("n PID : %d t PP ID : %dn",getpid(),getppid());
printf("getpid()=%d ret=%d rec=0n",getpid(),ret,rec);
printf("n");
}